Model: This car is for operation on 3-conductor Trix Express track. It can also be used on 2-conductor track and Marklin track by means of exchange wheel sets. Trix Express and Marklin couplers are included. The car has adjustable buffers. The 7319 plug-in current-conducting couplings or the 72020/72021 operating current-conducting couplers can be installed on the car. Length over the buffers 26.4 cm / 10-3/8".